/Engine/Source/Runtime/Engine/Classes/Animation/BlendProfile.h
Update all the bone weights for some providedFBlendSampleData. This internally will iterate over all entries inside the InOutCurrentData::PerBoneBlendData parameter and call CalculateBoneWeight for each entry.
void UpdateBoneWeights ( [FBlendSampleData](API\Runtime\Engine\Animation\FBlendSampleData) & InOutCurrentData, const [FAlphaBlend](API\Runtime\Engine\FAlphaBlend) & BlendInfo, float BlendStartAlpha, float MainWeight, bool bInverse )